Brake-head.



A. H..PEYCKE. BRAKE HEAD.

APPLICATION FILED N0V.28 I914.

Patented May18, 1915.

structionjditlers from that in the PIOVISlOIl' means .tion by spring is multiplied. Further, in the provision of "ran s'rnrgn s n rnn'r OFFICE.

ARMAND H. PEYCKE, OF CHICAGO, ILLINOIS, ASSIGNORITO AMERICAN STEEL FOUNDR-IES, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

BRAKE-HEAD.

Specification of'Letters Patent;

Patented May 18, 1915.

I Application filed November 28, 1914. Serial No. 874,523.

a citizen of the United States, and resident of Chicago, in the county of Cook and State oi Illinois, have invented certain new and useful lniprovemcnts in Brake-Heads, of which the following is a specification.

My invention relates to brakesand has particular reference to a novel adjustable brake head.

It is customary to employ in certain classes of service brake heads which are angularly adjustable onthe beamsand which may be held in any of a plurality of adjusted positions. The means for so holding these heads may vary within wide limits but the space within which these adjusting means may be locatcdis limited and therefore the form of the adjusting device must be restricted.

It has heretofore been proposed to provide wedges exerting force against the bearing, for holding the head in adjusted positions, these devices usually being-actuated by screw and adapted toyexert considerable force. It has been thoughtndesirable to provide a spring-advanced meinber 'by means of which a lockingi'orce may be continuously exerted. This, however, 15 not new, a commonmeans for securing such result having been shown in the patent to Robischung, No.

485,823, now expired. -The present conof means for securing a partial wedging nomeans of which the power of the extraneous'means for actuating the spring-thrust block to remove'lt from engagement with the sleeve or bearing member.

An object. therefore is to eliminate the pos sibility of the retraction of the locking blockby an over-zealous attendant whose intentions are to-tighten ratherthan to loosen the locking means.

1 Theinvention will be morereadilyunderstood. by reference to the accompanying drawings, wherein,

Figure 1 is a vertical section through a brake head and sleeve constructed in accord-- 'ance with my invention; 'Fig. 2 is a side 'view-ofthe locking block, and, Fig. 3 is a top "plan view of the same.

'Referr ng more particularly to the drawings it will be seen that I provide a sleeve 10, having a complete peripheral groove 11 therein. On the sleeve is mounted a brake head 12, having an elongated chamber :13, in its lower end extending downward at an angle to the axis of the head.' Mounted within this chamber is a helical spring 14, which bears against and urges-upwarda locking block 15. tially triangular in vertical section, one edge of which curved to the are of curvature of the sleeve 10, and occupies the groove 11, in

, the sleeve. The opposite side is a plane sur- 13, on opposite sides thereof, the opening.

17, registering with a triangular opening 19. in the block 15. When the head is to be applied to the sleeve'a bar such as shown at '20. is inserted in the openings and the locking block may be pried or forced downwardly until the bar moves to the dotted line position shown in Fig. 1. In this position the head may be slipped onto the sleeve and thereafter the bar removed, the block occupying the groove inthe sleeve and preventing the removal in the head. This locking arrangement cannot be tampered with in any manner to permanently affect its action. Consequently the block cannot be accidentally withdrawn thus making possible the loss of the head.

Obviously modifications may be made in the construction shown and such modifications as are within the scope of my claims I consider within the spirit of my invention.

I claim: 1

1. In a device of the class described. the combination of a bearing having a groove therein, a head mounted on said bearing, said tiall as described.

'2. In a device of the class described, the

-combination of a bearing having a peripheral groove. a head mounted 'on said bearing. a spring-advanced wedge-shaped locking block carried by said ld ad normally This block is substan-- occupying the groove in said bearing 1'-- combination-0f slam-e, a head mounted on a rangement being such that s id be z nd said sle'ma a $3951 hearing are maintained in ,engag the 0f sax-d head, substan advanced locking black agalnst said she. e, a spring-m carried by said 11-261 1 1&2 saii skate, said i vmg m1 opemn' ng said block 01% sleeve, substanam ted t0 as described.

7 'A-ADDOX1 4: in a devweof iiue class 

